The Sims Youtube Channel - Any Advice?

I'll admit, I don't really know ow tagging works...I looks, and successful youtubers seem to put about million tags in! I only ever put a handful--I couldn't even THINK of that many tags! And often people tag things that are only vaguely related, or tag all their other videos in their videos...is that a good/okay thing to do? Anyway, I'm really just another newbie looking for advice :-P

Like, here's my most recent video

https://youtu.be/VQeH1F81FvI

The tags I used were: sims 4, let'splay, get to work, sims story, powerpuff girls, professor utonium, scientist career. Are there other tags I could/should be using?